I am not particularly technical gifted so I can’t give a technical answer. But this spring I had some problems with a burned fuse in an antispark and I reached max amp in a hard acceleration with foc boxes which short it down. Never again! So I contacted Brandon for advice regarding a setup with a big safety margin, he suggested this set up. It can handle 50 mph uphill and crazy speed on very steep such as 16% I did this summer at the uphill event in Denmark. Brandon writes elsewhere (from the SRB Esc approach):
For the track where speeds are moderate I am sure a vesc would be fine.